With The gradual enrichment on the types of concrete, the types of superplasticizers have also increased, and naphthalene superplasticizers and polycarboxylic acid superplasticizers are beginning to be commonly used in concrete [27,28]. Although there are already many types of superplasticizers, that happen to be all based on OPC, the ingredient https://metalprinting93703.blogzag.com/80998662/not-known-factual-statements-about-betontrennmittel
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